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Merck

63138

Magnesium sulfate heptahydrate

BioUltra, ≥99.5% (KT)

Synonym(s):

Epsom salts

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About This Item

Linear Formula:
MgSO4 · 7H2O
CAS Number:
Molecular Weight:
246.47
PubChem Substance ID:
eCl@ss:
38030409
UNSPSC Code:
12352302
NACRES:
NA.26
EC Number:
231-298-2
MDL number:
assay:
≥99.5% (KT)
grade:
reagent grade
solubility:
H2O: 1 M at 20 °C, clear, colorless

Product Name

Magnesium sulfate heptahydrate, BioUltra, ≥99.5% (KT)

InChI key

WRUGWIBCXHJTDG-UHFFFAOYSA-L

InChI

1S/Mg.H2O4S.7H2O/c;1-5(2,3)4;;;;;;;/h;(H2,1,2,3,4);7*1H2/q+2;;;;;;;;/p-2

SMILES string

O.O.O.O.O.O.O.[Mg++].[O-]S([O-])(=O)=O

grade

reagent grade

vapor density

<0.01 (vs air)

vapor pressure

<0.1 mmHg ( 20 °C)

product line

BioUltra

assay

≥99.5% (KT)

impurities

insoluble matter, passes filter test
≤0.002% total nitrogen (N)

pH

5.0-8.0 (25 °C, 1 M in H2O)

solubility

H2O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤5 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤1 mg/kg
K: ≤10 mg/kg
Li: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤10 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H2O

UV absorption

λ: 260 nm Amax: 0.010
λ: 280 nm Amax: 0.010

Quality Level

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Application


  • Research on the Working Performance and the Corresponding Mechanical Strength of Polyaluminum Sulfate Early Strength Alkali-Free Liquid Accelerator Matrix Cement.: This research investigates the applications of magnesium sulfate heptahydrate in improving the performance and mechanical strength of cement used in construction (Wang et al., 2022).

Other Notes

Component of Earle′s balanced salt solution; Component of Hanks′ balanced salt solution; Component of plant cell-culture media and of culture media for microorganisms.; Purification of CAP, catabolite gene activator; In the preparation of spheroplasts from E. coli K38

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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M. Takanam
Methods in Enzymology, 65, 24-24 (1980)
Relation of oxygen and temperature in the preservation of tissues by refrigeration.
J H HANKS et al.
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.), 71(2), 196-200 (1949-06-01)
G. Zubay
Methods in Enzymology, 65, 861-861 (1980)
W.R. Earle et al.
Journal of the National Cancer Institute, 4, 165-165 (1943)
Samuel Thompson et al.
eLife, 9 (2020-07-24)
Protein mutational landscapes are shaped by the cellular environment, but key factors and their quantitative effects are often unknown. Here we show that Lon, a quality control protease naturally absent in common E. coli expression strains, drastically reshapes the mutational

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